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On Mon, Feb 22, 2010 at 12:17:38PM -0500, Aldrich, Dak wrote: > And yet another puzzling problem. > > I have several OptiPlex 760's. One of them I've got to successfully work with two monitors. I had to install the NVidia drivers directly from them, the ones that Dell had didn't work correctly. > > However, I have two other 760's that I'm trying to get working and it's not working. I've installed the SAME NVidia drivers from them that I used on the previously mentioned machine. > > What happens, I can enable dual monitors in mirror mode, however, the second I set it to a primary and secondary, it reverts to mirrored. I have the same Dell issued video splitter adapter for all 3 machines. > > I'm confused. Anyone have anything that might tell me why this happens and how to fix it? Not sure if this is directly applicable to the 760's, but on my laptop, I can sort this out by going into the NVIDIA control panel, under Display / Set up multiple displays. I can't always get it right under the Display control panel itself. Doug -- Doug Nelson, Network Architect | [log in to unmask] Academic Technology Services | Ph: (517) 353-2980 Michigan State University | http://www.msu.edu/~nelson/